arplookup x.x.x.x failed: host is not on local network

[Daniel Ponticello]

Hi Peter,
i'm having exactly the same problem, but without NAT configuration. Just 
a simple host on network 192.168.170.xxx
that when tries to reach an host on 192.168.181.xxx: it gives the same error

arplookup 192.168.181.253 failed: host is not on local network


The funny thing is that IP connection works anyway. The problem is 
present only when trying to reach network
192.168.181.xxx, which is absolutely not on local network.

The problem started with freebsd 5.3 and today, with 7, it is still present.


Daniel


Peter Jeremy ha scritto:
> I'm occasionally seeing pairs of messages like the following on
> my NAT host:
> arplookup 192.168.181.114 failed: host is not on local network
> arpresolve: can't allocate route for 192.168.181.114
>
> In my particular configuration, there are dual subnets between the NAT
> and target host.  My initial assumption was that the request was
> arriving on the other subnet and I added if_xname to the arplookup
> printf() - but that shows that interface matches the IP address.
> I've looked back through the mailing lists but the previous reports
> of this problem don't match my scenario.
>
> I've seen this with FreeBSD 5.3, 6.2 and 7.0.
>
> The (in)frequency of the problem makes me wonder if it's actually a
> resource exhaustion problem.
>
> Has anyone got any suggestions?
>
>   

-- 

WBR,
Cordiali Saluti,
 
Daniel Ponticello, VP of Engineering

Network Coordination Centre of Skytek

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